Stencil.



J. BUCHERT & W. J. GILKER.

STENCIL.

APPLICATION FILED MAY 28, I913.

1,179,070f Patented Apr. 11,1916.

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* PTNT JACOB BUCHERT AND WILLIAM J. GILKER, 0F NEWPORT, KENTUCKY.

STENCIL.

Specification of Letters Patent.

Patented Apr. 11, 1916.

Application filed May 28, 1913. Serial No. 770,301.

proved stencil, which is composed of a num-.

ber of separate stencils and which is particularly adapted to be employed in marking barrel heads and similar articles.

These and other objects we attain by means of a device embodying the features herein described, and illustrated in the drawings accompanying and forming a part of this application.

In the drawings, Figure 1 is a plan view of a stencil composed of separate blades removably secured together and embodying our invention. Fig. 2 is a perspective View of a single stencil blade, embodying our invention. Fig. 3 is a side elevation of a blade, such as is illustrated in Fig. 2, and illustrates means which may be employed in removably securing each blade to an adjacent blade. Fig. A is a sectional view of the stencil shown in Fig. 1, the section being taken through the clamping plates and clamping nut, which form details of our invention.

The stencil illustrated as an embodiment of our invention consists of a number of separately formed, substantially sector-shaped, stencil blades 5, which are secured together at their apexes by means of a mounting pin 6, and which extend radially from the pin in fan-like arrangement.

Each stencil blade consists of a thin sheet of metal, which is cut so that it tapers from one end to the other and is provided near its small end with an aperture 7, capable of being engaged by the pin. A letter, or other character 8, is out in the blade near its outer end, and the outer end of each blade is curved to correspond to the arc of a circle struck from the center of the aperture 7. Each blade is also provided on one converging edge, and near its outer end, with a lug 9, struck up from the metal of the blade,

so that it occupies a position above the plane of the surface of the blade and is capable of engaging the edge of an adjacent blade, without distorting the adjacent blade.

The pin 6 is preferably screw-threaded and is preferably permanently secured to a plate 11, which forms'a base for supporting the blades engaged by the pin. A removable plate or washer 12 is also adapted to be'mounted on the pin and a nut 13 engages the pin and forces the plate into clamping engagement with the blades engaged by the pin.

The characters 8, cut in each blade, are all 2 located the same distance from the ends of the blades, and when a stencil is formed by securing a number of the blades together, the characters are arranged in circumferential alinement.

The operation of assembling a number of separate blades to form a stencil for printing a particular word or combination of words, consists in selecting blades having the letters of the selected words, and then arranging the blades so that the blade bearing the first letter of the word is located on the pin 6, adjacent to the permanent plate 11, and the remaining blades are superimposed upon each other in the order that the letters follow each other in the word. After the blades are all in place on the pin, the washer or plate 12 is placed on the pin so that it engages the top-most blade, and then the nut 13 is screwed onto the pin. Before the nut is screwed tight, so as to force the plates 11 and 12 into clamping engagement with the blades, the blades are preferably spread, as illustrated in Fig. 1,

and arranged so that the lug 9 of each blade engages the adjacent edge of the next blade. With this arrangement the lugs 9 hold the blades in overlapping engagement with each other and secure their outer ends together.

After the outer ends of the blades have been secured together in this manner, the nut 13 can be tightened so as to force the plates 11 and 12 into clamping engagement with the blades.

We have found it advisable to employ a pin 6 provided with left-hand screw threads and a correspondingly tapped nut. With this arrangement the tightening of the nut tends to force the edge of each blade into engagement with the lug 9 on the next adjacent blade, whereas the tightening of a righthanded nut tends to separate the blades,

unless special precautions are taken to hold the blades together.

It will, of course, be understood that some of the blades employed in making up the stencil need not have characters cut in them, and that the width of each blade, and the number of characters carried by it, may be varied, and that Various other changes, modifications and substitutions may be made, without departing from the spirit and scope of the invention as set forth by the appended claims.

What we claim is:

1. A stencil comprising a plurality of separate stencil blades, said blades being located in overlapping engagement with each other, a screw threaded pin for securing one end of the blades together, a nut screwed on to the pin, adapted to force the blades into clamping engagement with each other, and interlocking means formed on the blades for holding their outer ends in spread and fan-like relation to each other.

2. A stencil, comprising a plurality of separate stencil blades located in overlapping engagement with each other, a pin for securing one end of the blades together, a lefthanded nut, screwed onto the pin, for forcing the blades into clamping engagement with each other, and interlocking means, formed on the blades, for holding their outer ends in spread or fan-like relation to each other.

In testimony whereof, we have hereunto subscribed our names this 24th day of May, 1913.

JACOB BUCHERT, WM. J. GILKER.

Witnesses:

RALPH H. Brown, WALTER F. MURRAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

